Shotgun: Tiffanian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Microcosmodon woodi Holtzman and Wolberg 1977
    = informal Weil eucosmodontid woodi
Holtzman and Wolberg 1977
presumably includes "cf. Eucosmodon sp."; from New Anthill
Mammalia - Condylarthra - Hyopsodontidae
Promioclaenus sp. Trouessart 1904
Mammalia - Insectivora
Diacodon sp. Cope 1875
    = Insectivora indet. Bowdich 1821
Alroy 2002
Mammalia - Macroscelidea - Apheliscidae
cf. Litomylus sp. Simpson 1935
Mammalia - Pantolestidae
Pentacodon sp. Scott 1892
Mammalia - Viverravidae
Protictis (Simpsonictis) sp. (Matthew)
    = cf. Simpsonictis sp. MacIntyre 1962
MacIntyre 1966
Protictis microlestes (Simpson 1935)
(1 measurement)
    = Bryanictis microlestes Simpson 1935
Krause and Gingerich 1983
Gunnell lists no carnivores, and I presume he was unaware of this reference and of MacIntyre 1966, which gave the original i.d.
Mammalia - Periptychidae
Peryptychus carinidens
    = Periptychus cf. carinidens Cope 1881
Alroy 2002
Anisonchus cf. sectorius (Cope 1881)
Mammalia - Procreodi - Arctocyonidae
Tricentes subtrigonus (Cope 1881)
    = Mimotricentes subtrigonus Cope 1881
Alroy 2002
recombined as Tricentes subtrigonus
Claenodon ferox (Cope 1883)
    = Arctocyon cf. ferox Cope 1883
Alroy 2002
Colpoclaenus keeferi n. sp. Patterson and McGrew 1962
see Patterson and McGrew 1962
Mammalia - Phenacodontidae
Phenacodus matthewi Simpson 1935
Thewissen 1990
from Tiffanian of "Keefer Hill"
Ectocion sp. Cope 1882
ominously not mentioned by Thewissen 1990, but Keefer and Troyer 1964 list "Gidleyina sp."
Mammalia - Dermoptera
Elpidophorus cf. minor Simpson 1937
Mammalia - Primates - Paromomyidae
Ignacius cf. frugivorus Matthew and Granger 1921
Ignacius fremontensis (Gazin 1971)
Paromomys cf. depressidens Gidley 1923
Mammalia - Primates - Carpolestidae
Elphidotarsius shotgunensis Gazin 1971
Carpodaptes cf. hazelae Simpson 1936
Mammalia - Primates - Picrodontidae
Picrodus cf. silberlingi Douglass 1908
described by McGrew and Patterson 1962 (1 measurement)
    = Picrodus canpacius Scott and Fox 2005
Scott and Fox 2005
Mammalia - Primates - Plesiadapidae
Plesiadapis sp. Gervais 1877
resembles P. praecursor; assigned to that species by Gingerich 1976 and Krause and Gingerich 1983
Nannodectes intermedius n. sp. (Gazin 1971)
(1 measurement)
Mammalia - Primates
Palaechthon cf. alticuspis Gidley 1923
Palaechthon woodi Gazin 1971
Mammalia - Primates - Palaechthonidae
Palenochtha cf. minor (Gidley 1923)
Plesiolestes cf. problematicus Jepsen 1930
(1 measurement)
Torrejonia sirokyi (Szalay 1973)
(1 measurement)
Mammalia - Pantolambdidae
Pantolambda cf. cavirictum Cope 1883
Mammalia - Pentacodontidae
Aphronorus fraudator Simpson 1935
Krishtalka et al. 1975
Aphronorus orieli Gazin 1969
Krishtalka et al. 1975
Gunnell lists "cf. Aphronorus sp." and once again is merely repeating an old i.d.
Mammalia - Cimolestidae
Gelastops sp. Simpson 1935
Mammalia
cf. Peradectes sp. Matthew and Granger 1921
Mammalia - Multituberculata - Taeniolabididae
Catopsalis calgariensis Russell 1926
Middleton 1982
Gunnell lists C. cf. fissidens; record of C. cf. fissidens in Keefer 1961 explicitly referred to C. calgariensis by Middleton (5 measurements)
Mammalia - Multituberculata - Ptilodontidae
Ptilodus sp. Cope 1881
given as "P. cf. montanus" by Keefer and Troyer 1964
Mammalia - Multituberculata - Cimolodontidae
Anacodon gidleyi
    = Anconodon lewisi n. sp. Sloan 1987
Sloan 1987
synonym of Anconodon cochranensis
is listed by Gunnell as a multituberculate, but Anacodon is an arctocyonid and Anconodon gidleyi was listed by Keefer 1961
Mammalia - Multituberculata - Neoplagiaulacidae
Mesodma pygmaea Sloan 1987
Sloan 1987
Ectypodus aphronorus Sloan 1987
Sloan 1987
Gunnell lists "E. sp."
Mimetodon cf. silberlingi (Simpson 1935)
Neoplagiaulax nelsoni Sloan 1987
Sloan 1987
nomen nudum belonging to Neoplagiaulax
Parectypodus pattersoni Sloan 1987
    = Parectypodus sylviae Rigby 1980
Sloan 1987
Parectypodus sinclairi (Simpson 1935)
Sloan 1987
see common names

Geography
Country:United States State/province:Wyoming County:Fremont
Coordinates: 43.5° North, 109.2° West (view map)
Paleocoordinates:49.4° North, 89.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Paleocene
10 m.y. bin:Cenozoic 1
*Period:Tertiary
Key time interval:Tiffanian
Age range of interval:60.90000 - 56.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Fort Union Member:Shotgun
Local section:Shotg Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:this is NOT West Side of Shotgun Butte (see), which is the uppermost of three fossiliferous horizons; the fauna of the lowest horizon is not discussed by Gunnell
apart from the plesiadapiforms, Gunnell's list is mostly repeated from ancient sources without modification
Gunnell lists Eudaemonema cuspidata from "Shotgun fauna, Keefer Hill" but omits this from his faunal list
Metadata
Also known as:UW V-60014, V-60016; Keefer Hill; Twin Buttes; Jenkins Mountain; New Anthill
Database number:15067
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2003-01-12 19:26:25
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1730. G. F. Gunnell. 1989. Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology 27:1-157 [J. Alroy/J. Alroy/P. Mannion]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1930 R. C. Holtzman and D. L. Wolberg. 1977. Microcosmodontinae and Microcosmodon woodi, new multituberculate taxa (Mammalia) from the late Paleocene of North America. Scientific Publications of the Science Museum of Minnesota 4(1):1-13 [J. Alroy/J. Alroy/M. Uhen]
2165ETE 1542D. W. Krause and P. D. Gingerich. 1983. Mammalian Fauna from Douglass Quarry, Earliest Tiffanian (Late Paleocene) of the Eastern Crazy Mountain Basin, Montana. Contributions from the Museum of Paleontology, University of Michigan 26(9):157-196 [J. Alroy/J. Alroy/P. Mannion]
2176 L. Krishtalka, C. C. Black, and D. W. Riedel. 1975. Paleontology and geology of the Badwater Creek area, central Wyoming. Pt. 10. A late Paleocene mammal fauna from the Shotgun Member of the Fort Union Formation. Annals of Carnegie Museum 45(9):179-212 [J. Alroy/J. Alroy/M. Uhen]
2385 G. T. MacIntyre. 1966. The Miacidae (Mammalia, Carnivora). Part 1, The systematics of Ictidopappus and Protictis. Bulletin of the American Museum of Natural History 131(2):115-210 [J. Alroy/J. Alroy/J. Marcot]
2584 M. D. Middleton. 1982. A new species and additional material of Catopsalis (Mammalia, Multituberculata) from the Western Interior of North America. Journal of Paleontology 56(5):1197-1206 [J. Alroy/J. Alroy/P. Mannion]
14679 C. S. Scott and R. C. Fox. 2005. Windows on the evolution of Picrodus (Plesiadapiformes: Primates): morphology and relationships of a species complex from the Paleocene of Alberta. Journal of Paleontology 79(4):635-657 [J. Alroy/J. Alroy]
3196 R. E. Sloan. 1987. Paleocene and latest Cretaceous mammal ages, biozones, magnetozones, rates of sedimentation, and evolution. Geological Society of America Special Paper 209:165-200 [J. Alroy/J. Alroy/M. Uhen]
3401 J. G. M. Thewissen. 1990. Evolution of Paleocene and Eocene Phenacodontidae (Mammalia, Condylarthra). University of Michigan Papers on Paleontology 29:1-107 [J. Alroy/J. Alroy/P. Mannion]